Ultra Low Permeability High Clarity PCTFE Resin For Cryogenic Barrier
1. Product Description
PCTFE (Polychlorotrifluoroethylene) resin is a high-performance fluoropolymer known for its exceptional moisture barrier properties, ultra-low gas permeability, and excellent clarity. It offers outstanding chemical resistance, dimensional stability, and low outgassing characteristics, making it ideal for precision molding applications. With a continuous service temperature range from -200°C to +150°C, PCTFE resin is widely used in critical environments where stability and purity are essential. Its non-flammable, non-toxic nature also complies with demanding safety standards such as FDA and ASTM.
2. Product Applications
PCTFE resin is suitable for use in the following industries and applications:
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Cryogenic components (valves, seals, O-rings)
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High-performance barrier films for moisture-sensitive electronics and pharmaceuticals
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Semiconductor and electronic parts
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Precision medical components
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Aerospace insulation and components
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Chemical processing equipment
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Transparent mechanical parts requiring optical clarity and dimensional stability
3. Key Technical Properties
| Property | Value / Range | Test Method |
|---|---|---|
| Appearance | Transparent / Clear Pellets | Visual Inspection |
| Density | 2.10 – 2.17 g/cm³ | ASTM D792 |
| Melting Point | ~210°C (410°F) | ASTM D3418 |
| Thermal Stability | Excellent up to 150°C continuous use | – |
| Water Vapor Transmission Rate | < 0.1 g·mm/m²·day (extremely low) | ASTM E96 |
| Oxygen Permeability | < 1.0 cm³·mm/m²·day·atm | ASTM D1434 |
| Tensile Strength | ≥ 35 MPa | ASTM D638 |
| Elongation at Break | ≥ 50% | ASTM D638 |
| Flame Resistance | Non-flammable | UL 94 V-0 |
| Chemical Resistance | Excellent against acids, bases, oils | – |
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4. FAQ – Frequently Asked Questions
Q1: What makes PCTFE resin different from PTFE or FEP?
A1: PCTFE has significantly lower gas permeability, better dimensional stability, and higher tensile strength, making it ideal for moisture- and air-sensitive applications.
Q2: Can PCTFE resin be injection molded?
A2: Yes, it has excellent processability for precision injection and compression molding.
Q3: Is PCTFE FDA approved for food or medical use?
A3: Yes, high-purity grades of PCTFE resin comply with FDA regulations and are suitable for medical applications.
Q4: What’s the temperature range for PCTFE use?
A4: PCTFE maintains performance from -200°C to +150°C.
Q5: Is PCTFE resistant to radiation or UV?
A5: PCTFE offers good resistance to UV and moderate resistance to gamma radiation.
Q6: How does PCTFE perform in cryogenic conditions?
A6: It retains mechanical integrity and sealing performance even at extremely low temperatures, making it ideal for cryogenic valves and gaskets.
Q7: Can PCTFE be used as a transparent barrier film?
A7: Yes, it is widely used for transparent films in pharmaceutical and electronics packaging due to its ultra-low moisture permeability.
Q8: What is the shelf life of PCTFE resin?
A8: If stored properly in dry conditions, it has an indefinite shelf life without performance degradation.
Q9: Is PCTFE recyclable or reusable?
A9: It can be reprocessed under controlled conditions, but recycling is less common due to its high-performance nature.
Q10: What processing techniques are suitable for PCTFE resin?
A10: Suitable methods include injection molding, compression molding, extrusion, and machining of molded parts.
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